ASA · Acrylonitrile Styrene Acrylate
The practical outdoor-oriented cousin of ABS — chosen when UV and weather exposure matter.
Best for: Outdoor parts · Exterior housings · Signage mounts
Available by project review
Why teams choose ASA
The practical outdoor-oriented cousin of ABS — chosen when UV and weather exposure matter.
Strengths
- Stronger UV resistance than typical ABS for outdoor duty
- Similar design language to ABS enclosures
- Useful for exterior brackets and covers
At a glance
Relative performance — a simplified comparison across FORM3D’s available FDM materials. Actual properties vary by formulation, geometry and print orientation.
- Strength3/5
- Stiffness3/5
- Impact resistance3/5
- Heat resistance3/5
- UV resistance5/5
- Flexibility2/5
- Surface detail3/5
Options within ASA
Select a variant to see what actually changes — finish, use and limitations.
Standard
Outdoor-capable ASA for UV-exposed parts.
Available by project review
Best for
Outdoor brackets · Exterior housings
Appearance
Opaque durable finish
What changes
- UV-oriented versus ABS
Key limitations
- Process and warp considerations similar to ABS
Colours (5 available)
Black · #1A1A1A
Colour representation is approximate. Material batch, surface finish, print orientation, geometry, lighting and display calibration can affect final appearance.
Colour is subordinate to material choice
Use the variant panel above for swatches. Colours never get standalone pages.
Comparative guidance
These scales help orientation. They are not laboratory certificates.
Relative performance — a simplified comparison across FORM3D’s available FDM materials. Actual properties vary by formulation, geometry and print orientation.
- Strength3/5
- Stiffness3/5
- Impact resistance3/5
- Heat resistance3/5
- UV resistance5/5
- Flexibility2/5
- Surface detail3/5
Where this family fits
- Outdoor brackets and mounts
- Exterior covers
- Equipment housings exposed to sunlight
Designing for ASA
Pair with FORM3D Design Guidelines for shared FDM rules.
- Design for outdoor fastening and drainage where water can pool.
- Keep large panels ribbed to control distortion.
- Validate colour and gloss expectations with a sample when appearance is critical.
Know the trade-offs
- Still requires careful design for warp on large plates
- Not a high-heat polycarbonate substitute
- Colour and finish options may be narrower than PLA
Common questions
- Is ASA always required outdoors?
- Not always — but if sunlight and weather are primary drivers, ASA is usually a better starting point than PLA, PETG or ABS. Confirm with material selection guidance for your environment.
Related families
Configure a part in Instant Quote
The Materials Library helps you decide. Instant Quote remains the separate pricing experience.